63568281216 has 96 divisors (see below), whose sum is σ = 185599159200. Its totient is φ = 19263101440.

The previous prime is 63568281167. The next prime is 63568281241. The reversal of 63568281216 is 61218286536.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637596 + ... + 730523.

It is an arithmetic number, because the mean of its divisors is an integer number (1933324575).

Almost surely, 2^63568281216 is an apocalyptic number.

63568281216 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

63568281216 is an abundant number, since it is smaller than the sum of its proper divisors (122030877984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63568281216 is a wasteful number, since it uses less digits than its factorization.

63568281216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368158 (or 1368135 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The spelling of 63568281216 in words is "sixty-three billion, five hundred sixty-eight million, two hundred eighty-one thousand, two hundred sixteen".